Forum Discussion
milanv_137346
Nimbostratus
NimbostratusX-Forwarded-Host
I wish to set the Host Header to the first value in the X-Forwarded-Host header. Any suggestions on how to best achieve this.
We wrote the code below but it did not work. Can you please assist in resolving the same?
when HTTP_REQUEST { set xff_list '' set x 0 set newheader '' if {[HTTP::header values X-Forwarded-Host] ne ""} { set xff_list [split [HTTP::header values X-Forwarded-Host] ","]
newheader::[lindex $xff_list $x] newheader::[string trimleft [$newheader] 1] [HTTP::header replace "Host" [$newheader]]
}
1 Reply
- Kevin_Stewart
Employee
Try this:
when HTTP_REQUEST { if { [HTTP::header exists X-Forwarded-Host] } { HTTP::header replace Host [string trim [lindex [split [HTTP::header X-Forwarded-Host] ","] 0]] } }This of course assumes that X-Forwarded-Host contains 2 host names separated by a comma, versus two separate X-Forwarded-Host headers (which might also be possible).
